[Q] 4k display problems - Android Stick & Console RockChip based Computers

I recently acquired an RK3288 TV box running 4.4.2 that claims to be capable of outputting 4k (3840 x 2160). The only reason for getting this was to be able to use a RDP client to display a huge desktop for my server on the local network on my shiny new Dell 4K monitor.
Here's the problem: In the Android settings, I set the resolution to 3840 x 2160 @ 30Hz, and the monitor OSD confirms that it's receiving this correctly. However, Android still thinks it's 1080, (at least according to Elixir 2) even though the settings menu and the monitor tell me it's 4k. Consequently, my RDP client also thinks it's 1080p, and even if I force 4k on the RDP settings, it just scrolls around the 4k desktop within a 1080 window.
Immensely frustrating -- is anyone out there clued up about this kind of thing....?

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[Q] Any rom with the option to change aspect ratio?

I want to be able to temporarily set my Nexus 10 to render the desktop at 16:9 instead of 16:10 so that when I hook it up to a 16:9 tv via hdmi, it doesn't need to scale the image down and add black bars on the sides. Is there any way to do this? Perhaps an option on a custom rom?
On a CM 10.1 thread, a recognized developer posted some modified files to get 1280x800 resolution or something like that. Not exactly 16:9, but perhaps a similar method could be made to get such a resolution.
I don't know what thread in-particular exactly :/
Aspect ratio has nothing to do with your TV either processing or not processing the image. Unless you are outputting the exact resolution your TV uses then it will always run the input through its scaler. And even if you do run the exact resolution, you still have the other processing the TV does, and very few models of TV's allow you to completely disable this extra processing. You may be able to get rid of most or all of the black bars simply by running a 16:9 aspect ratio, but unless you also run the exact resolution then you will still have processing done by the scaler on your TV.
I'm aware of that, but at least by making sure the signal I'm outputting through the HDMI cable is the same aspect ratio as the TV, it should ensure that the TV's scaler fits the final picture to the screen without any unnecessary black bars, and that's all I care about. It would be nice if Android had an option to specify the exact resolution it outputs through HDMI instead of just duplicating the res of the main screen, but in the absence of that option, I'm looking for a solution to at least get the aspect ratio right.
http://forum.xda-developers.com/showthread.php?t=2209700
Mxplayer is implementing the same thing google play movies has where it will go into "hdmi mode"...
I know this isn't a full fix but it will be awesome for movies...
The exynos5 dual supports simultaneous native wqxga (2560x1600) and 1080p at 60fps through hdmi so it should be posdible to scale...
Mabey key lime pie will fix? Well see

[Q] Image Truncating on a 720p TV

Hello!
i am using my nexus player on a 720p TV but i am not viewing the complete image, it truncates the image, like if the nexus player is fixed at 1080p so the image received through HDMI is 1080p, but the TV is only able to display a part of it, (centered)
i installed xbmc/kodi and it also does not let me change the output resolution, also says 1080p (though it has the option but is read-only)
there's no option to change the output resolution manually
any help?
Currently there's no way to change the output resolution, but I should add that the Nexus Player always renders at 1080p internally, and then scales when it goes to output over HDMI. So, even if you're outputting at 720p, XBMC will report that you are rendering at 1080p.
Have you confirmed via your TV's display info that you're actually getting a 1080p input signal? If you're just getting overscan at 720p, that's expected and all the native apps are (supposed to be) designed to handle a 10% picture loss. Are you only noticing things cut off in XBMC, or are you missing parts of the screen in the rest of Android as well?
I didn't noticed until I started installing apps. all sideloaded apps have missing parts, Chrome, Sideload Launcher, xbmc, File Commander, etc...
WORKED!
thanks xBIGREDDx, my TV settings where wrong, it was set to Zoom instead of scale to fit.

Change Nexus Player HDMI output resolution

I have a UWHD 2560 x 1080 Display, and the Nexus Player would only output 1920 x 1080 resolution, leaving 2 massive black pillars on each side. I know that Android could theoretically support any screen resolution, but the stock rom does not have any settings to change the HDMI output resolution. I have tested sideloading a play store app called "Resolution Changer Pro" but it did not work.
Does anyone know how to do this? Or is there any custom rom that could do this?
Thanks in advance!
There's no way on stock rom for sure
Is your Nexus Player hooked up to a TV or computer monitor? If the TV or monitor's menu or remote allows you to horizontally stretch the 1080p video on the HDMI input to which the Nexus Player is connected, that's worth a try. There's also the utility at http://forum.xda-developers.com/showpost.php?p=59760033&postcount=11 but it's intended to provide overscan calibration so I'm not sure if it will help in your case.

Force-enable resolutions/override TV EDID?

I did some searching, and didn't find anyone talking about how to force enable resolutions or override the TV EDID.
My use case: I use kodi to watch a lot of locally ripped media, some of which is originally PAL content (and I'm in the US), so the native refresh rate is either 25hz or 50hz. My TV is technically capable of 25hz and 50hz refresh rates, but as it is a US model, it only advertises capabilities for North American resolutions/refresh rates.
Previously, I used kodi on a linux box, and was able to force enable 25hz and 50hz in the video card settings to allow kodi to switch the TV to 25hz/50hz native when displaying 25hz/50hz content.
On the Shield TV, kodi works fine, and is even able to auto-switch refresh rate to 24/60hz as needed when I play 24hz or 60hz content, but my TV only lists US resolutions as supported in its EDID info, so the shield doesn't seem to let kodi swtich to 25/50hz. This is very annoying when watching 25/50hz content, as it looks juddery and jerky.
Is there a way to override the detected resolutions, or force-enable resolutions on the Shield TV?
I have oem unlocked and rooted the device in prep for anything I may need to do to enable these refresh rates.

Shield 2015: 4k video resolution?

I have a nvidia shield tv 2015 with full android.
Now I bought a LG 4k monitor and tried to watch local 4k movies but I found that the video resolution of android is only 2k (the movie is 4k and the monitor is 4k). But I have no settings to change the resolution.
But I have "adb shell" access and wonder if I can edit a settings file and change the resolution to 4k?
Did you check all your HDMI cables can handle 4K? That's usually the place to start.
I did the same test with an Intel NUC and 4k worked.
I tried
adb shell wm size 3840x2160
Click to expand...
Click to collapse
and testet the result with a 4k test picture and it worked!
So: everything ok now.

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